Teemu Hakala

According to our database, Teemu Hakala authored at least 55 papers between 2009 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2025

Tracking foresters and mapping tree stem locations with decimeter-level accuracy under forest canopies using UWB.

Zuoya Liu, Harri Kaartinen, Teemu Hakala, Juha Hyyppä, Antero Kukko, Ruizhi Chen

Expert Syst. Appl., 2025

2024

Integration of a Mobile Laser Scanning System with a Forest Harvester for Accurate Localization and Tree Stem Measurements.

Tamás Faitli, Eric Hyyppä, Heikki Hyyti, Teemu Hakala, Harri Kaartinen, Antero Kukko, Jesse Muhojoki, Juha Hyyppä

Remote. Sens., September, 2024

Benchmarking Under- and Above-Canopy Laser Scanning Solutions for Deriving Stem Curve and Volume in Easy and Difficult Boreal Forest Conditions.

Jesse Muhojoki, Daniella Tavi, Eric Hyyppä, Matti Lehtomäki, Tamás Faitli, Harri Kaartinen, Antero Kukko, Teemu Hakala, Juha Hyyppä

Remote. Sens., May, 2024

Performance Analysis of Standalone UWB Positioning Inside Forest Canopy.

Zuoya Liu, Harri Kaartinen, Teemu Hakala, Juha Hyyppä, Antero Kukko, Ruizhi Chen

IEEE Trans. Instrum. Meas., 2024

Data-Driven Antenna Delay Calibration for UWB Devices for Network Positioning.

Zuoya Liu, Teemu Hakala, Juha Hyyppä, Antero Kukko, Harri Kaartinen, Ruizhi Chen

IEEE Trans. Instrum. Meas., 2024

Unsupervised semantic segmentation of urban high-density multispectral point clouds.

Oona Oinonen, Lassi Ruoppa, Josef Taher, Matti Lehtomäki, Leena Matikainen, Kirsi Karila, Teemu Hakala, Antero Kukko, Harri Kaartinen, Juha Hyyppä

CoRR, 2024

Detecting Wildfires on UAVs with Real-time Segmentation Trained by Larger Teacher Models.

Julius Pesonen, Teemu Hakala, Väinö Karjalainen, Niko Koivumäki, Lauri Markelin, Anna-Maria Raita-Hakola, Juha Suomalainen, Ilkka Pölönen, Eija Honkavaara

CoRR, 2024

Feasibility of using Ku-band helicopter-borne microwave radar for stem volume and biomass estimation in boreal forest.

Ziyi Feng, Xiaowei Yu, Yuwei Chen, Eetu Puttonen, Teemu Hakala, Changhui Jiang, Juha Hyyppä

Int. J. Appl. Earth Obs. Geoinformation, 2024

2023

Comparison of Deep Neural Networks in the Classification of Bark Beetle-Induced Spruce Damage Using UAS Images.

Emma Turkulainen, Eija Honkavaara, Roope Näsi, Raquel Alves Oliveira, Teemu Hakala, Samuli Junttila, Kirsi Karila, Niko Koivumäki, Mikko Pelto-Arvo, Johanna Tuviala, Madeleine Östersund, Ilkka Pölönen, Päivi Lyytikäinen-Saarenmaa

Remote. Sens., October, 2023

Evaluating Factors Impacting Fallen Tree Detection from Airborne Laser Scanning Point Clouds.

Einari Heinaro, Topi Tanhuanpää, Mikko Vastaranta, Tuomas Yrttimaa, Antero Kukko, Teemu Hakala, Teppo Mattsson, Markus Holopainen

Remote. Sens., January, 2023

Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato.

Jaakko Oivukkamäki, Jon Atherton, Shan Xu, Anu Riikonen, Chao Zhang, Teemu Hakala, Eija Honkavaara, Albert Porcar-Castell

Remote. Sens., 2023

2022

Estimating Tree Health Decline Caused by Ips typographus L. from UAS RGB Images Using a Deep One-Stage Object Detection Neural Network.

Heini Kanerva, Eija Honkavaara, Roope Näsi, Teemu Hakala, Samuli Junttila, Kirsi Karila, Niko Koivumäki, Raquel Alves Oliveira, Mikko Pelto-Arvo, Ilkka Pölönen, Johanna Tuviala, Madeleine Östersund, Päivi Lyytikäinen-Saarenmaa

Remote. Sens., December, 2022

Feasibility of Hyperspectral Single Photon Lidar for Robust Autonomous Vehicle Perception.

Josef Taher, Teemu Hakala, Anttoni Jaakkola, Heikki Hyyti, Antero Kukko, Petri Manninen, Jyri Maanpää, Juha Hyyppä

Sensors, 2022

2021

The Penetration Analysis of Airborne Ku-Band Radar Versus Satellite Infrared Lidar Based on the Height and Energy Percentiles in the Boreal Forest.

Hui Zhou, Yuwei Chen, Teemu Hakala, Ziyi Feng, Changhui Jiang, Jianxin Jia, Haibin Sun, Juha Hyyppä

Remote. Sens., 2021

Using Microwave Profile Radar to Estimate Forest Canopy Leaf Area Index: Linking 3D Radiative Transfer Model and Forest Gap Model.

Kai Du, Huaguo Huang, Ziyi Feng, Teemu Hakala, Yuwei Chen, Juha Hyyppä

Remote. Sens., 2021

2020

The Determination of Effective Beamwidth of Ku Band Profiling Radar Based on Waveform Matching Method in the Boreal Forest of Finland.

Hui Zhou, Yuwei Chen, Nan Hu, Yuandan Dong, Xinmin Xu, Ziyi Feng, Teemu Hakala, Juha Hyyppä

Remote. Sens., 2020

Comparison of Backpack, Handheld, Under-Canopy UAV, and Above-Canopy UAV Laser Scanning for Field Reference Data Collection in Boreal Forests.

Eric Hyyppä, Xiaowei Yu, Harri Kaartinen, Teemu Hakala, Antero Kukko, Mikko Vastaranta, Juha Hyyppä

Remote. Sens., 2020

Erratum: Du, K., et al. Simulation of Ku-Band Profile Radar Waveform by Extending Radiosity Applicable to Porous Individual Objects (RAPID2) Model. Remote Sensing 2020, 12, 684.

Kai Du, Huaguo Huang, Yuyi Zhu, Ziyi Feng, Teemu Hakala, Yuwei Chen, Juha Hyyppä

Remote. Sens., 2020

Lidar-aided analysis of boreal forest backscatter at Ku band.

Yuwei Chen, Ziyi Feng, Fashuai Li, Hui Zhou, Teemu Hakala, Mika Karjalainen, Juha Hyyppä

Int. J. Appl. Earth Obs. Geoinformation, 2020

On the Estimation of the Leaf Angle Distribution from Drone Based Photogrammetry.

Shan Xu, Martha Arbayani Zaidan, Eija Honkavaara, Teemu Hakala, Niko Viljanen, Albert Porcar-Castell, Zhigang Liu, Jon Atherton

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, 2020

2019

Airborne Wind Vector Scatterometer for Sea Surface Measurements.

Juha Kainulainen, Sampo Salo, Janne Lahtinen, Guifré Molera Calvés, Jaakko Seppänen, Jaan Praks, Teemu Hakala, Yuwei Chen, Juha Hyyppä, Martin Unwin, Philip Jales, Gerhard Ressler, Tânia Casal, Josep Roselló

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2019

2018

Estimating Ground Level and Canopy Top Elevation With Airborne Microwave Profiling Radar.

Ziyi Feng, Yuwei Chen, Juha Hyyppä, Teemu Hakala, Hui Zhou, Yunsheng Wang, Mika Karjalainen

IEEE Trans. Geosci. Remote. Sens., 2018

Estimation of Canopy Height Using an Airborne Ku-Band Frequency-Modulated Continuous Waveform Profiling Radar.

Hui Zhou, Yuwei Chen, Juha Hyyppä, Ziyi Feng, Fashuai Li, Teemu Hakala, Xinmin Xu, Xiaolei Zhu

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2018

Direct Reflectance Measurements from Drones: Sensor Absolute Radiometric Calibration and System Tests for Forest Reflectance Characterization.

Teemu Hakala, Lauri Markelin, Eija Honkavaara, Barry Scott, Theo Theocharous, Olli Nevalainen, Roope Näsi, Juha Suomalainen, Niko Viljanen, Claire Greenwell, Nigel Fox

Sensors, 2018

A Backpack-Mounted Omnidirectional Camera with Off-the-Shelf Navigation Sensors for Mobile Terrestrial Mapping: Development and Forest Application.

Mariana Batista Campos, Antonio M. G. Tommaselli, Eija Honkavaara, Fabricio dos Santos Prol, Harri Kaartinen, Aimad El Issaoui, Teemu Hakala

Sensors, 2018

The Comparison of Canopy Height Profiles Extracted from Ku-band Profile Radar Waveforms and LiDAR Data.

Hui Zhou, Yuwei Chen, Ziyi Feng, Fashuai Li, Juha Hyyppä, Teemu Hakala, Mika Karjalainen, Changhui Jiang, Ling Pei

Remote. Sens., 2018

Assessment of Classifiers and Remote Sensing Features of Hyperspectral Imagery and Stereo-Photogrammetric Point Clouds for Recognition of Tree Species in a Forest Area of High Species Diversity.

Sakari Tuominen, Roope Näsi, Eija Honkavaara, Andras Balazs, Teemu Hakala, Niko Viljanen, Ilkka Pölönen, Heikki Saari, Harri Ojanen

Remote. Sens., 2018

A Novel Tilt Correction Technique for Irradiance Sensors and Spectrometers On-Board Unmanned Aerial Vehicles.

Juha Suomalainen, Teemu Hakala, Raquel Alves de Oliveira, Lauri Markelin, Niko Viljanen, Roope Näsi, Eija Honkavaara

Remote. Sens., 2018

Assessing Biodiversity in Boreal Forests with UAV-Based Photogrammetric Point Clouds and Hyperspectral Imaging.

Ninni Saarinen, Mikko Vastaranta, Roope Näsi, Tomi Rosnell, Teemu Hakala, Eija Honkavaara, Michael A. Wulder, Ville Luoma, Antonio M. G. Tommaselli, Nilton Nobuhiro Imai, Eduardo A. W. Ribeiro, Raul B. Guimarães, Markus Holopainen, Juha Hyyppä

Remote. Sens., 2018

Estimating Biomass and Nitrogen Amount of Barley and Grass Using UAV and Aircraft Based Spectral and Photogrammetric 3D Features.

Roope Näsi, Niko Viljanen, Jere Kaivosoja, Katja Alhonoja, Teemu Hakala, Lauri Markelin, Eija Honkavaara

Remote. Sens., 2018

Tree Species Identification Using 3D Spectral Data and 3D Convolutional Neural Network.

Ilkka Pölönen, Leevi Annala, Samuli Rahkonen, Olli Nevalainen, Eija Honkavaara, Sakari Tuominen, Niko Viljanen, Teemu Hakala

Proceedings of the 9th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, 2018

Fully Polarimetric Airborne Wind Vector Scatterometer to Support Space-Borne Gnss-R Measurements.

Juha Kainulainen, Sampo Salo, Janne Lahtinen, Guifré Molera Calvés, Jaakko Seppänen, Jaan Praks, Teemu Hakala, Yuwei Chen, Juha Hyyppä, Martin Unwin, Philip Jales, Gerhard Ressler, Tania Casal, Josep Roselló

Proceedings of the 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018

Drone Measurements of Solar-Induced Chlorophyll Fluorescence Acquired with a Low-Weight DFOV Spectrometer System.

Jon Atherton, Alasdair MacArthur, Teemu Hakala, Kadmiel Maseyk, Iain Robinson, Weiwei Liu, Eija Honkavaara, Albert Porcar-Castell

Proceedings of the 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018

2017

An Analysis of Ku-Band Profiling Radar Observations of Boreal Forest.

Livia Piermattei, Markus Hollaus, Milutin Milenkovic, Norbert Pfeifer, Raphael Quast, Yuwei Chen, Teemu Hakala, Mika Karjalainen, Juha Hyyppä, Wolfgang Wagner

Remote. Sens., 2017

Individual Tree Detection and Classification with UAV-Based Photogrammetric Point Clouds and Hyperspectral Imaging.

Olli Nevalainen, Eija Honkavaara, Sakari Tuominen, Niko Viljanen, Teemu Hakala, Xiaowei Yu, Juha Hyyppä, Heikki Saari, Ilkka Pölönen, Nilton Nobuhiro Imai, Antonio M. G. Tommaselli

Remote. Sens., 2017

UAV-Borne Profiling Radar for Forest Research.

Yuwei Chen, Teemu Hakala, Mika Karjalainen, Ziyi Feng, Jian Tang, Paula Litkey, Antero Kukko, Anttoni Jaakkola, Juha Hyyppä

Remote. Sens., 2017

Different Remote Sensing Data in Relative Biomass Determination and in Precision Fertilization Task Generation for Cereal Crops.

Jere Kaivosoja, Roope Näsi, Teemu Hakala, Niko Viljanen, Eija Honkavaara

Proceedings of the Information and Communication Technologies in Modern Agricultural Development, 2017

Applying Different Remote Sensing Data to Determine Relative Biomass Estimations of Cereals for Precision Fertilization Task Generation.

Jere Kaivosoja, Roope Näsi, Teemu Hakala, Niko Viljanen, Eija Honkavaara

Proceedings of the 8th International Conference on Information and Communication Technologies in Agriculture, 2017

ICN enabling CoAP extensions for IP based IoT devices.

Nikos Fotiou, George Xylomenos, George C. Polyzos, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, Eero Hakala

Proceedings of the 4th ACM Conference on Information-Centric Networking, 2017

2016

Remote Sensing of 3-D Geometry and Surface Moisture of a Peat Production Area Using Hyperspectral Frame Cameras in Visible to Short-Wave Infrared Spectral Ranges Onboard a Small Unmanned Airborne Vehicle (UAV).

Eija Honkavaara, Matti A. Eskelinen, Ilkka Pölönen, Heikki Saari, Harri Ojanen, Rami Mannila, Christer Holmlund, Teemu Hakala, Paula Litkey, Tomi Rosnell, Niko Viljanen, Merja Pulkkanen

IEEE Trans. Geosci. Remote. Sens., 2016

Scan matching technology for forest navigation with map information.

Yuwei Chen, Jian Tang, Ehsan Khoramshahi, Teemu Hakala, Harri Kaartinen, Anttoni Jaakkola, Juha Hyyppä, Zhen Zhu, Ruizhi Chen

Proceedings of the IEEE/ION Position, Location and Navigation Symposium, 2016

CoAP over ICN.

Nikos Fotiou, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, George C. Polyzos

Proceedings of the 8th IFIP International Conference on New Technologies, 2016

Range calibration of airborne profiling radar used in forest inventory.

Ziyi Feng, Yuwei Chen, Teemu Hakala, Juha Hyyppä

Proceedings of the 2016 IEEE International Geoscience and Remote Sensing Symposium, 2016

2015

Using UAV-Based Photogrammetry and Hyperspectral Imaging for Mapping Bark Beetle Damage at Tree-Level.

Roope Näsi, Eija Honkavaara, Päivi Lyytikäinen-Saarenmaa, Minna Blomqvist, Paula Litkey, Teemu Hakala, Niko Viljanen, Tuula Kantola, Topi Tanhuanpää, Markus Holopainen

Remote. Sens., 2015

Investigating Bi-Temporal Hyperspectral Lidar Measurements from Declined Trees - Experiences from Laboratory Test.

Samuli Junttila, Sanna Kaasalainen, Mikko Vastaranta, Teemu Hakala, Olli Nevalainen, Markus Holopainen

Remote. Sens., 2015

2013

Processing and Assessment of Spectrometric, Stereoscopic Imagery Collected Using a Lightweight UAV Spectral Camera for Precision Agriculture.

Eija Honkavaara, Heikki Saari, Jere Kaivosoja, Ilkka Pölönen, Teemu Hakala, Paula Litkey, Jussi Mäkynen, Liisa Pesonen

Remote. Sens., 2013

Classification of Spruce and Pine Trees Using Active Hyperspectral LiDAR.

Jari Vauhkonen, Teemu Hakala, Juha Suomalainen, Sanna Kaasalainen, Olli Nevalainen, Mikko Vastaranta, Markus Holopainen, Juha Hyyppä

IEEE Geosci. Remote. Sens. Lett., 2013

2010

Two-channel Hyperspectral LiDAR with a Supercontinuum Laser Source.

Yuwei Chen, Esa Räikkönen, Sanna Kaasalainen, Juha Suomalainen, Teemu Hakala, Juha Hyyppä, Ruizhi Chen

Sensors, 2010

Land Surface Albedos Computed from BRF Measurements with a Study of Conversion Formulae.

Jouni I. Peltoniemi, Terhikki Manninen, Juha Suomalainen, Teemu Hakala, Eetu Puttonen, Aku Riihelä

Remote. Sens., 2010

Analysis of Properties of Reflectance Reference Targets for Permanent Radiometric Test Sites of High Resolution Airborne Imaging Systems.

Eija Honkavaara, Teemu Hakala, Jouni Peltoniemi, Juha Suomalainen, Eero Ahokas, Lauri Markelin

Remote. Sens., 2010

Acquisition of Bidirectional Reflectance Factor Dataset Using a Micro Unmanned Aerial Vehicle and a Consumer Camera.

Teemu Hakala, Juha Suomalainen, Jouni I. Peltoniemi

Remote. Sens., 2010

Active hyperspectral LIDAR methods for object classification.

Sanna Kaasalainen, Juha Suomalainen, Teemu Hakala, Yuwei Chen, Esa Räikkönen, Eetu Puttonen, Harri Kaartinen

Proceedings of the 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, 2010

2009

Measurement of Reflectance Properties of Asphalt Surfaces and Their Usability as Reference Targets for Aerial Photos.

Eetu Puttonen, Juha Suomalainen, Teemu Hakala, Jouni Peltoniemi

IEEE Trans. Geosci. Remote. Sens., 2009

Polarised Multiangular Reflectance Measurements Using the Finnish Geodetic Institute Field Goniospectrometer.

Juha Suomalainen, Teemu Hakala, Jouni Peltoniemi, Eetu Puttonen

Sensors, 2009

SNORTEX (Snow Reflectance Transition Experiment): Remote Sensing Measurement of the Dynamic Properties of the Boreal Snow-forest in Support to Climate and Weather Forecast: Report of IOP-2008.

Jean-Louis Roujean, Terhikki Manninen, Anna Kontu, Jouni Peltoniemi, Olivier Hautecoeur, Aku Riihelä, Panu Lahtinen, Niilo Siljamo, Hanne Suokanerva, Timo Sukuvaara, Sanna Kaasalainen, Osmo Aulamo, Veijo Aaltonen, Laura Thölix, Juha Karhu, Juha Suomalainen, Teemu Hakala, Harri Kaartinen

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2009